Water Heaters - Gas

⚠️WARNING SCALDING INJURY

• Turn off water heater before opening pressure-temperature relief valve to establish air space. Storage water must be cool.

1
Turn off main water supply (the pump or water hook up source).

2
Let water cool or let run until cool.

3
Open the hot water faucet closest to the water heater.

4
Pull handle of pressure temperature relief valve straight out and allow water to flow until it stops.

5
Allow pressure temperature relief valve to snap shut; close faucet; turn on water supply.

6
Turn on water heater and test.

At least once a year manually operate pressure-temperature relief valve (G).

When pressure-temperature relief valve discharges again, repeat above procedure.

For a permanent solution, we recommend one of the following:

A
Install a pressure relief valve in cold water inlet line to water heater and attach a drain line from valve to outside of coach. Set to relieve at 100-125 PSI.

B
Install a diaphragm-type expansion tank in cold water inlet line. Tank should be sized to allow for expansion of approximately 15 oz. of water and pre-charged to a pressure equal to water supply pressure. These devices can be obtained from a plumbing contractor or service center.

C
Alternatively you can install a diaphragm-type expansion tank in the cold water inlet line. The tank should be sized to allow for expansion of approximately 15 oz. of water and pre-charged to a pressure equal to the water supply pressure. These devices can be obtained from a plumbing contractor or service center.